CVE-2026-49777
CriticalExploitedImproper Validation of Specified Quantity in Input vulnerability in ShapedPlugin, LLC Product Slider Pro for WooCommerce allows Malicious Software Implanted.
Published Jun 5, 2026 · Updated Jul 23, 2026 · Also known as EUVD-2026-34792, GHSA-r843-rvx7-3rjg, f8dd7981-e681-425f-9445-f0a28c8af063
Key Facts
Patch immediately- CVE-2026-49777 is a critical-severity vulnerability (CVSS 10.0 v3.1) affecting smart-show-post-pro (wordpress-plugin), testimonial-pro (wordpress-plugin), woo-product-slider-pro (wordpress-plugin) and 1 more product.
- It is exploited in the wild, listed in Industry KEV feed since Jun 5, 2026. No public exploit code is known.
- EPSS estimates a 2.0% probability of exploitation in the next 30 days.
- Fixed versions are available, including Product Slider Pro for WooCommerce 3.5.3, Product Slider Pro for WooCommerce 3.5.4, smart-show-post-pro 4.0.2.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
10.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
2.0%
Exploited in the wild
Yes
1 catalog listing
Public exploit code
None known
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Description
Improper Validation of Specified Quantity in Input vulnerability in ShapedPlugin, LLC Product Slider Pro for WooCommerce allows Malicious Software Implanted.
This issue affects Product Slider Pro for WooCommerce: from n/a before 3.5.4.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jun 5, 2026 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| smart-show-post-prowordpress-plugin | See advisory | 4.0.2 |
| testimonial-prowordpress-plugin | See advisory | n/a |
| woo-product-slider-prowordpress-plugin | See advisory | 3.5.4 |
| Product Slider Pro for WooCommerce | >= n/a | 3.5.3 |
Patched Releases
Product Slider Pro for WooCommerce
3.5.3, 3.5.4
smart-show-post-pro
4.0.2
woo-product-slider-pro
3.5.4
Timeline
Publicly disclosed
Jun 5, 2026
Added to Industry KEV feed
Jun 5, 2026
Last updated
Jul 23, 2026
Weakness Type
- CWE-506 Embedded Malicious Code
- CWE-1284 Improper Validation of Specified Quantity in Input
References
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/f8dd7981-e681-425f-9445-f0a28c8af063?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/f8dd7981-e681-425f-9445-f0a28c8af063?source=api-scan
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- otherhttps://patchstack.com/database/wordpress/plugin/woo-product-slider-pro/vulnerability/wordpress-product-slider-pro-for-woocommerce-plugin-3-5-2-backdoor-vulnerability?_s_id=cve
FAQ
Common Questions.
Improper Validation of Specified Quantity in Input vulnerability in ShapedPlugin, LLC Product Slider Pro for WooCommerce allows Malicious Software Implanted.
Affected: smart-show-post-pro (wordpress-plugin); testimonial-pro (wordpress-plugin); woo-product-slider-pro (wordpress-plugin), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jun 5, 2026.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Product Slider Pro for WooCommerce 3.5.3, Product Slider Pro for WooCommerce 3.5.4, smart-show-post-pro 4.0.2.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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